KR101481646B1 - Incoming and distribution panel system and its control method - Google Patents

Abstract

The present invention relates to a distribution board system and a method for controlling the same, capable of detecting an abnormal state of a distribution board system. The distribution board system comprises: a virtual abnormal state realization module to receive an abnormal state realization control signal to virtually realize an abnormal state that can be generated in a distribution board; a sensor module to detect the abnormal state to output an abnormal detection signal; and a control module to receive the abnormal detection signal from the sensor module to identify whether the sensor module is normally operated.

Description

Technical Field [0001] The present invention relates to a system and a control method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard system and a control method thereof, and more particularly, to a switchboard system and a control method thereof capable of detecting an abnormal state of a switchboard system.

Although the capacity and number of electric power facilities are rapidly increasing due to the increase of electric power demand, there is also an increase in loss of life and economic loss due to power outage and breakdown.

The switchgear consists of various circuit breakers, transformers, transformers, control switches, and relays, which are needed before ordering. If a fault occurs in the switchboard, it takes a long time to repair or replace, and since the damage is large, the damage should be minimized even if it is replaced or broken before the fault occurs.

Control systems that can prevent the spread of system problems in the distribution and distribution system have been devised, but it is not easy to detect before a failure or problem occurs. In the case of fire, breakdown and breakdown of the switchboard is an electrical factor and the ratio of electric arc and short circuit is very high. These electric factors include insulation deterioration, contact failure, and tracking. More particularly, the service life of a switchboard is influenced by an abnormal voltage of an insulating material surge and an open / close surge, deterioration due to electrical and mechanical stress of an external short circuit, and thermal deterioration due to overloading.

Particularly, the partial discharge occurring in the corona and the arc is not a big problem because the current and the discharge charge are not large at the initial stage. However, if such a phenomenon continues, the insulation performance may be deteriorated, leading to breakage and failure of the power distribution panel. It is necessary to develop a technique capable of quickly detecting discharge.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an ultrasonic sensor fabricated using an array piezoelectric element array, The performance of the sensor can be maintained by the remaining piezoelectric elements which are not deteriorated even if any piezoelectric element is deteriorated. In addition, the acoustic impedance of the piezoelectric element is reduced, and the piezoelectric characteristic such as the piezoelectric deformation constant And to provide a control method of the same. However, these problems are exemplary and do not limit the scope of the present invention.

According to an aspect of the present invention, there is provided a system and method for implementing a virtual anomaly state, the system comprising: a virtual anomaly state implementation module that can receive an anomaly state implementation control signal to implement an anomaly state that can be generated in a system; A sensor module for detecting the abnormal state and outputting an abnormality detection signal; And a control module which receives the abnormality detection signal from the sensor module and confirm whether the sensor module is operating normally.

According to an aspect of the present invention, the virtual abnormal state implementation module includes an ultrasonic generator for generating ultrasonic waves in a band that can be generated at the time of partial discharge (PD), and the sensor module includes: And an ultrasonic sensor for sensing the ultrasonic wave.

According to an aspect of the present invention, the ultrasonic sensor includes: a piezoelectric element array in which a plurality of columnar piezoelectric elements are arranged in a matrix; An insulating filler filled between the piezoelectric elements; A first electrode layer provided on the upper surface of the packing and electrically connected to upper electrodes of the piezoelectric elements, respectively; And a second electrode layer provided on the lower surface of the packing and electrically connected to the lower electrodes of the piezoelectric elements, respectively.

According to an aspect of the present invention, the ultrasonic sensor includes: a front matching layer disposed above the first electrode layer; A rear matching layer provided below the second electrode layer; A signal line electrically connected to the first electrode layer and transmitting a sensing signal; And a ground line electrically connected to the second electrode layer.

According to an aspect of the present invention, the ultrasonic sensor has a measurement frequency range of 100 kHz to 2 MHz, and the front matching layer has a maximum transmission acoustic impedance of 2 MRayL to 4 MRayL, Type, the maximum transmitted acoustic impedance may be between 1 and 3 MRayL, and the maximum transmitted acoustic impedance may be between 1 and 3 MRayL.

According to an aspect of the present invention, the virtual abnormal state implementation module includes at least a partial PD (partial discharge) generator, a virtual abnormal temperature raising device, a virtual abnormal voltage raising device, a virtual abnormal current raising device, A hypothetical abnormal sound wave generator, a virtual abnormal sound wave generator, a virtual abnormal sound field generator, a warning light, and a combination of these may be selected.

According to an aspect of the present invention, there is provided a virtual partial discharge generating apparatus comprising: a first electrode and a second electrode which are provided so as to be spaced apart from each other; And a high voltage generator for applying a high voltage between the first electrode and the second electrode to generate a discharge between the first electrode and the second electrode.

According to an aspect of the present invention, the sensor module includes at least a temperature sensor, an infrared sensor, a voltage sensor, a current sensor, a gas sensor, a moisture sensor, an electrostatic sensor, a sound wave sensor, A sensor, a camera, and a combination thereof.

According to an aspect of the present invention, the control module further includes: a signal generator periodically generating the abnormal state implementation control signal; A time measuring unit for measuring a delay time from a transmission time of the abnormal state implementation control signal generated by the signal generation unit to a reception time of the anomaly detection signal received from the sensor module; And a determination unit outputting a normal operation signal when the delay time is within the reference range and outputting an abnormal operation signal when the delay time exceeds the reference range.

According to an aspect of the present invention, the control module may further include a sensor replacement notification unit that detects a change in the strength of the anomaly detection signal and outputs a predicted replacement time of the sensor.

According to another aspect of the present invention, there is provided a method for controlling a switchboard system, the method comprising: implementing an anomaly state that may occur in a switchboard using a virtual anomaly state implementation module; Sensing the abnormal state using a sensor module; And checking whether the sensor module is operating normally by receiving the abnormality detection signal using the control module.

According to some embodiments of the present invention as described above, it is possible to confirm whether the sensor module is operating normally or not, and the ultrasonic sensor manufactured using the array piezoelectric element array can be confirmed by using an ultrasonic sensor using one piezoelectric element The performance of the sensor can be maintained by the remaining piezoelectric elements that are not deteriorated even if any piezoelectric element is deteriorated, and it is possible to reduce the acoustic impedance of the piezoelectric element and improve the piezoelectric characteristic such as the piezoelectric strain constant And it is possible to predict the replacement timing of the parts. Of course, the scope of the present invention is not limited by these effects.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a conceptual diagram illustrating a system for a switchboard according to some embodiments of the present invention.
2 is a perspective view schematically illustrating a switchboard system according to some alternative embodiments of the present invention.
Fig. 3 is an exploded perspective view of the ultrasonic sensor shown in Fig. 2; Fig.
4 is a part assembly sectional view showing an example of the ultrasonic sensor of Fig.
5 is a block diagram illustrating an example of a virtual fault condition implementation module of a switchboard system in accordance with some other embodiments of the present invention.
Fig. 6 is a conceptual diagram showing an example of the virtual partial discharge generating device of Fig. 5;
7 is a block diagram showing an example of a sensor module of a switchboard system according to some other embodiments of the present invention.
8 is a block diagram showing an example of a control module of a switchboard system according to some other embodiments of the present invention.
9 is a flowchart showing a control method of a switchboard system according to some embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, The present invention is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, if the element is inverted in the figures, the elements depicted as being on the upper surface of the other elements will have a direction on the lower surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

1 is a conceptual diagram illustrating a walkie-talkie system 100 in accordance with some embodiments of the present invention.

1, the switchboard system 100 according to some embodiments of the present invention includes a virtual abnormal state implementation module 10, a sensor module 20 and a control module 30 can do.

Here, the virtual abnormal state implementation module 10 may be a module capable of realizing an abnormal state that can be generated in the switchboard 1 by receiving the abnormal state implementation control signal.

In addition, the sensor module 20 can sense an abnormal state of the switchboard 1 and output an abnormality detection signal, and can also output the abnormality detection signal, which is virtually implemented using the virtual abnormal state implementation module 10, And outputting an abnormality detection signal.

In addition, the control module 30 may be a module capable of receiving the abnormality detection signal from the sensor module 20 and confirming whether the abnormality is normal or not.

1, an operation process of the switchboard system 100 according to some embodiments of the present invention will be described. First, the virtual abnormal state implementation module 10 can be used to generate Such as an ultrasonic wave generation, a partial discharge, a temperature rise, a voltage rise, a current rise, a gas leak, a moisture leak, a static electricity generation, an abnormal sound wave generation, Abnormal pulsed waves, abnormal electromagnetic field generation, and light generation can be virtually realized.

Then, the sensor module 20 can be used to detect the abnormality that is virtually implemented. At this time, the sensor module 20 may output various anomaly detection signals according to the abnormal environment.

Then, the control module 30 receives the anomaly detection signal to recognize the anomaly detection signal. When the anomaly detection signal is normal, the sensor module 20 is determined as a normal state, It is possible to confirm whether or not the battery 20 is operating normally.

Therefore, according to the switchboard system 100 according to some embodiments of the present invention, it is difficult to confirm whether or not the normal operation of the sensor module 20 is normal, .

2 is a perspective view schematically illustrating a switchboard system 200 according to some alternative embodiments of the present invention.

More specifically, for example, as shown in FIG. 2, the virtual abnormal state implementation module 10 includes an ultrasonic generator 10 for generating ultrasonic waves in a band that can be generated at the time of partial discharge (PD) And the sensor module 20 may include an ultrasonic sensor 20-1 for sensing the ultrasonic waves.

Here, the ultrasonic sensor 20-1 may be a sensor capable of detecting ultrasonic waves that may be generated during partial discharge, which is one of the abnormal phenomena that may occur in the switchboard 1.

Fig. 3 is an exploded perspective view showing an example of the ultrasonic sensor 20-1 in Fig. 2, and Fig. 4 is a part assembly sectional view showing an example of the ultrasonic sensor 20-1 in Fig.

3 and 4, the ultrasonic sensor 20-1 will be described in more detail. The ultrasonic sensor 20-1 includes a piezoelectric element array 20-12, The first electrode layer 20-14, the second electrode layer 20-15, the front matching layer 20-16, the rear matching layer 20-17, the signal line 20-18 and ground lines 20-19, and the like.

3, the piezoelectric element array 20-12 includes an array type in which various types of piezoelectric elements 20-11 such as a square column or a circular column are arrayed in rows and columns, Lt; / RTI >

The piezoelectric element array 20-12 may be formed by assembling a plurality of the piezoelectric elements 20-11 or by cutting the base material along the X and Y axes. Here, the piezoelectric element 20-11 may be one of elements capable of converting the vibration energy of ultrasonic waves into electrical energy.

3, the insulating filler 20-13 may be an insulating material filled between the piezoelectric elements 20-12, such as an epoxy, a glass, a resin, a silicone resin composition, a silicone-modified epoxy resin Modified polyimide resin composition, polyphthalamide (PPA), polycarbonate resin, polyphenylene sulfide (PPS), liquid crystal polymer (PPS), and the like. (LCP), ABS resin, phenol resin, acrylic resin, and PBT resin.

3 and 4, the first electrode layer 20-14 is provided on the upper surface of the packing 20-13, and is connected to the upper electrodes of the piezoelectric elements 20-11, As a kind of wiring layer electrically connected, various patterns, solders, bonding members such as wires and bumps, or signal transmission members may be provided.

3 and 4, the second electrode layer 20-15 is provided on the lower surface of the packing 20-13, and the lower electrodes of the piezoelectric elements 20-11 As a kind of wiring layer electrically connected to each other, various patterns, solders, bonding members such as wires and bumps, or signal transmitting members can be provided.

4, the front matching layer 20-16 is disposed above the first electrode layer 20-14 and transmits ultrasonic vibrations to the piezoelectric element array 20-12 The impedance of the front matching layer 20-16 can be set so that ultrasonic vibration in a desired band can be selectively detected.

4, the rear matching layer 20-17 is provided below the second electrode layer 20-15, and the ultrasonic vibrations transmitted to the piezoelectric element array 20-12 And the impedance of the rear matching layer 20-17 may be set to selectively detect ultrasonic vibration in a desired band.

4, the signal line 20-18 is electrically connected to the first electrode layer 20-14 by a wire or the like electrically connected to the first electrode layer 20-14 so as to transmit an electric signal converted by the ultrasonic vibration to the outside Wire or signal transmission media.

4, the ground line 20-19 is electrically connected to the second electrode layer 20-15 so as to be grounded with the grounding member in order to secure a reference current or voltage Wire, wire or signal transmission medium.

4, the ultrasonic sensor 20-1 includes a coaxial connector C electrically connected to an external wire or an external device so as to be selectively detachable from an external wire or an external device, A metal case C1 for accommodating the components and a metal lid C2 for sealing the metal case C1, and the like.

More specifically, for example, the ultrasonic sensor 20-1 may have an ultrasonic band, that is, a measurement frequency range of 100 kHz to 2 MHz when partial discharge is generated in the switchboard 1, The layer 20-16 may have a maximum transmitted acoustic impedance of 2 MRayL to 4 MRayL and the rear matching layer 20-17 may have a maximum transmitted acoustic impedance of 0 to 1 MRayL for a resonant type, , The maximum transmitted acoustic impedance may be between 1 and 3 MRayL.

Therefore, the ultrasonic sensor 20-1 manufactured using the array type piezoelectric element array is superior in sensitivity than an ultrasonic sensor using a conventional piezoelectric element, and is excellent in sensitivity even when any piezoelectric element is deteriorated The performance of the sensor can be maintained by the piezoelectric elements, the acoustic impedance of the piezoelectric element can be reduced, and the piezoelectric characteristics such as the piezoelectric strain constant and the like can be improved.

5 is a block diagram illustrating an example of a virtual anomaly state implementation module 10 of a switchboard system in accordance with some other embodiments of the present invention.

5, the virtual abnormal state implementation module 10 includes a virtual partial discharge (PD) generator 10-2, a virtual abnormal temperature rise The apparatus 10-3, the virtual abnormal voltage raising apparatus 10-4, the virtual abnormal current raising apparatus 10-5, the virtual gas leakage apparatus 10-6, the virtual water leakage apparatus 10-7, The virtual abnormal sound wave generator 10-10, the virtual abnormal sound field generator 10-11, the beacon 10-12, And combinations of these may be selected.

6 is a conceptual diagram showing an example of the virtual partial discharge generating device 10-2 of Fig.

6, for example, the virtual partial discharge generator 10-2 includes a first electrode 10-21 and a second electrode 10-22 that are spaced apart from each other, (10-21) for applying a high voltage between the first electrode (10-21) and the second electrode (10-22) so as to generate a discharge between the first electrode (10-21) and the second electrode 10-23).

Accordingly, when the control module 30 applies a high voltage control signal to the high voltage generator 10-23, the first electrode 10-21 and the second electrode 10-22 A discharge is generated.

Then, when the control module 30 receives the abnormal state signal from the ultrasonic sensor 20-1, it can be determined as a normal state. Otherwise, if the abnormal state signal is not received, it is determined as abnormal state You can tell the operator.

In addition, as shown in FIG. 5, for example, the virtual abnormal temperature raising apparatus 10-3 may be a device for raising the temperature of the switchboard 1 using a heater as if a specific part is degraded.

Also, for example, the virtual abnormal voltage raising device 10-4 may be a device for raising the voltage of the switchboard 1 by using a voltage raising device as if the voltage of a specific part rises.

In addition, for example, the virtual abnormal current raising device 10-5 may be a device for raising the current of the switchboard 1 by using a current raising device as if the current of a specific part rises.

For example, the virtual gas leakage device 10-6 may be a device that leaks a small amount of gas to the inside and the outside of the switchboard 1 using a gas injection device as if the gas leaked.

For example, the virtual water leakage device 10-7 may be a device that leaks a small amount of water to the inside and outside of the switchboard 1 by using the water spray device as if water has leaked.

In addition, the virtual static electricity generator 10-8 may be a device capable of generating a small amount of static electricity on the inside and the outside of the switchboard 1 by using an electrostatic device as if static electricity is generated.

In addition, for example, the virtual anomalous sound generator 10-9 may be a device capable of generating a small amount of abnormal sound waves on the inside and outside of the switchboard 1 by using a sound wave device as if an abnormal sound wave is generated.

For example, the virtual ideal pulsar spa generator 10-10 may be a device capable of generating a small amount of pulse wave inside and outside the switchboard 1 by using a pulsed spark device, .

In addition, for example, the virtual ideal electromagnetic field generator 10-11 may be a device capable of generating a small amount of electromagnetic fields inside and outside the switchboard 1 using an electromagnetic field device as if an abnormal electromagnetic field is generated.

Further, for example, the beacon 10-12 may be a device capable of emitting light to the inside and the outside of the switchboard 1 by using a lamp or other display language as if it is in an emergency state, have.

7 is a block diagram illustrating an example of a sensor module 10 of a switchboard system according to some alternative embodiments of the present invention.

As shown in FIG. 7, the sensor module 20 can detect various kinds of virtual abnormal conditions implemented in the above-described virtual abnormality state implementation module 10, as well as the ultrasonic sensor 20-1 At least the temperature sensor 20-2, the infrared sensor 20-3, the voltage sensor 20-4, the current sensor 20-5, the gas sensor 20-6, the moisture sensor 20- 7, an electrostatic detecting sensor 20-8, a sound wave detecting sensor 20-9, a pulse wave detecting sensor 20-10, an electromagnetic field detecting sensor 20-11, a camera 20-12, May be selected from any one or more of the above.

Here, the temperature sensor 20-2 or the infrared sensor 20-3 can sense the switchboard 1 whose temperature has been raised by the virtual abnormal temperature raiser 10-3.

In addition, the voltage sensor 20-4 can sense the switchboard 1 whose voltage has been raised by the virtual abnormal voltage raising device 10-4.

Further, the current sensor 20-5 can sense the switchboard 1 whose current is raised by the virtual abnormal current-raising device 10-5.

In addition, the gas sensing sensor 20-6 can sense the switchgear 1 leaked by the virtual gas leakage device 10-6.

In addition, the moisture sensor 20-7 can sense the water distribution board 1 leaked by the virtual water leakage apparatus 10-7.

In addition, the electrostatic sensor 20-8 can sense the switchgear 1 where the static electricity is generated by the virtual static electricity generator 10-8.

In addition, the sound wave sensor 20-9 can sense the switchboard 1 where the abnormal sound wave is generated by the virtual abnormal sound wave generator 10-9.

In addition, the pulsed wave detection sensor 20-10 can detect the power transmission and distribution panel 1 in which the pulsed wave is generated by the virtual idealized pulsed wave generator 10-10.

In addition, the electromagnetic field sensor 20-11 can sense the switchboard 1 generated an electromagnetic field by the virtual ideal electromagnetic field generator 10-11.

In addition, the camera 20-12 can sense the switchboard 1 where the light is generated by the beacon 10-12.

Therefore, it is possible to remotely check whether or not the various sensors installed inside and outside the switchboard 1 are operating normally.

8 is a block diagram illustrating an example of a control module 30 of a switchboard system according to some alternative embodiments of the present invention.

8, the control module 30 includes a signal generation unit 31 for periodically generating the abnormal state implementation control signal, and a control unit 30 for controlling the abnormal state implementation control A time measurement unit 32 for measuring a delay time from a signal transmission time to a reception time of the anomaly detection signal received from the sensor module 20; (33) for outputting an abnormal malfunction signal when the delay time exceeds the reference range, and a sensor replacement notification unit (33) for detecting a change in the strength of the malfunction detection signal and outputting a predicted replacement time of the sensor 34).

Therefore, when the signal generator 31 periodically generates the abnormal state implementation control signal, the time measuring unit 32 generates the abnormal state implementation control signal from the transmission time of the abnormal state implementation control signal generated from the signal generator 31 A delay time up to a reception time of the anomaly detection signal applied from the sensor module 20 can be measured.

When the delay time is within the reference range, the plate edge portion 33 outputs a normal operation signal. If the delay time exceeds the reference range, the plate edge portion 33 outputs an abnormal operation signal, It is possible to confirm whether or not the operation unit 20 is operating normally.

On the other hand, by using the sensor replacement notification unit 34, it is possible to calculate a predicted replacement time of the sensor by sensing a change in the strength of the anomaly detection signal.

For example, if it is assumed that the abnormal state implementation control signal generated in the signal generator 31 of the control module 30 is generated periodically every day, and the intensity of the abnormality detection signal detected today is greater than the abnormality If the intensity of the sensor signal is reduced by a factor of 10, the expected replacement time of the sensor can be calculated as 10 days.

Therefore, not only can the operator periodically check whether the sensor module 20 is operating normally, but also the sensor to be replaced can be prepared in advance in anticipation of the replacement time of the sensor.

9 is a flowchart showing a control method of a switchboard system according to some embodiments of the present invention.

As shown in FIG. 9, a method of controlling a switchboard system according to some embodiments of the present invention includes: (a) virtualizing an abnormal state that may occur in a switchboard using a virtual fault condition implementation module 10 S1), detecting the abnormal state using the sensor module 20 (S2), and receiving the abnormality detection signal using the control module 30 to check whether the sensor module 20 is operating normally (Step S3).

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Switchboard
10: Virtual abnormal state implementation module
10-1: Ultrasonic generator
10-2: Virtual Partial Discharge Generator
10-3: Virtual abnormal temperature raising device
10-4: Virtual abnormal voltage raising device
10-5: Virtual abnormal current rise device
10-6: Virtual Gas Leakage Device
10-7: Virtual Water Leakage Device
10-8: Virtual static electricity generator
10-9: Virtual acoustic wave generator
10-10: Virtual abnormal pulsed wave generator
10-11: Virtual electric field generator
10-12: warning light
20: Sensor module
20-1: Ultrasonic sensor
20-2: Temperature sensor
20-3: Infrared detection sensor
20-4: Voltage sensor
20-5: Current sensor
20-6: Gas sensor
20-7: Moisture sensor
20-8: Electrostatic Sensing Sensor
20-9: Sound wave sensor
20-10: Pulse wave detection sensor
20-11: Electromagnetic Field Sensing Sensor
20-12: Camera
30: Control module
31: Signal generator
32: time measuring unit
33:
34: Sensor replacement notification unit
100, 200: Switchboard system

Claims (11)

A virtual anomaly state implementation module that can implement an anomaly state that can be generated in a switchboard by receiving an anomaly state control signal;
A sensor module for detecting the abnormal state and outputting an abnormality detection signal; And
A control module receiving the abnormality detection signal from the sensor module and confirming whether the sensor module is operating normally;
/ RTI >
Wherein the virtual abnormal state implementation module includes a partial PD (partial discharge) generator for generating a partial discharge,
Wherein the sensor module includes an ultrasonic sensor for sensing an ultrasonic wave generated during the partial discharge as the abnormal state,
The ultrasonic sensor includes:
A piezoelectric element array in which a plurality of columnar piezoelectric elements are arranged in a matrix;
An insulating filler filled between the piezoelectric elements;
A first electrode layer provided on the upper surface of the packing and electrically connected to upper electrodes of the piezoelectric elements, respectively;
A second electrode layer provided on a lower surface of the packing and electrically connected to lower electrodes of the piezoelectric elements, respectively;
A front matching layer disposed above the first electrode layer;
A rear matching layer provided below the second electrode layer;
A signal line electrically connected to the first electrode layer and transmitting a sensing signal; And
A ground line electrically connected to the second electrode layer;
/ RTI >
Wherein the ultrasonic sensor has a measurement frequency range of 100 kHz to 2 MHz,
The front matching layer has a maximum transmission acoustic impedance of 2 MRayL to 4 MRayL,
Wherein the rear matching layer is of a resonance type, wherein the maximum transmitted acoustic impedance is between 0 and 1 MRayL, and the maximum transmitted acoustic impedance is between 1 and 3 MRayL when in band mode. The method according to claim 1,
The virtual abnormal state implementation module may further include an ultrasonic generator for generating an ultrasonic wave in a band that can be generated at the time of partial discharge (PD)
Wherein the ultrasonic sensor senses ultrasonic waves generated in the ultrasonic generator. delete delete delete The method according to claim 1,
The virtual abnormal state implementation module includes a virtual abnormal temperature raising device, a virtual abnormal voltage raising device, a virtual abnormal current raising device, a virtual gas leakage device, a virtual moisture leak device, a virtual static electricity generator, A spark generating device, a virtual false electric field generating device, a warning light, and combinations thereof. The method according to claim 1,
The virtual partial discharge generating device includes:
A first electrode and a second electrode arranged to be spaced apart from each other; And
A high voltage generating device for applying a high voltage between the first electrode and the second electrode to generate a discharge between the first electrode and the second electrode;
Gt; The method according to claim 1,
The sensor module may include at least one of a temperature sensor, an infrared sensor, a voltage sensor, a current sensor, a gas sensor, a moisture sensor, an electrostatic sensor, a sound sensor, a pulse sensor, an electromagnetic sensor, Further comprising any one or more of the following. The method according to claim 1,
The control module includes:
A signal generator periodically generating the abnormal state implementation control signal;
A time measuring unit for measuring a delay time from a transmission time of the abnormal state implementation control signal generated by the signal generation unit to a reception time of the anomaly detection signal received from the sensor module; And
A discrimination unit which outputs a normal operation signal when the delay time is within a reference range and outputs an abnormal operation signal when the delay time exceeds the reference range;
Gt; 10. The method of claim 9,
The control module includes:
A sensor replacement notification unit for sensing a change in intensity of the anomaly detection signal and outputting a predicted replacement time of the sensor;
Further comprising: Simulating an abnormal state that may occur in a switchboard using a virtual fault condition implementation module;
Sensing the abnormal state using a sensor module; And
Receiving the abnormality detection signal using the control module and confirming whether the sensor module operates normally;
Lt; / RTI >
Wherein the virtual abnormal state implementation module includes a partial PD (partial discharge) generator for generating a partial discharge,
Wherein the sensor module includes an ultrasonic sensor for sensing an ultrasonic wave generated during the partial discharge as the abnormal state,
The ultrasonic sensor includes:
A piezoelectric element array in which a plurality of columnar piezoelectric elements are arranged in a matrix;
An insulating filler filled between the piezoelectric elements;
A first electrode layer provided on the upper surface of the packing and electrically connected to upper electrodes of the piezoelectric elements, respectively;
A second electrode layer provided on a lower surface of the packing and electrically connected to lower electrodes of the piezoelectric elements, respectively;
A front matching layer disposed above the first electrode layer;
A rear matching layer provided below the second electrode layer;
A signal line electrically connected to the first electrode layer and transmitting a sensing signal; And
A ground line electrically connected to the second electrode layer;
/ RTI >
Wherein the ultrasonic sensor has a measurement frequency range of 100 kHz to 2 MHz,
The front matching layer has a maximum transmission acoustic impedance of 2 MRayL to 4 MRayL,
Wherein the rear matching layer is a resonant type, wherein the maximum transmitted acoustic impedance is between 0 and 1 MRayL, and the maximum transmitted acoustic impedance is between 1 and 3 MRayL when in band type.

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